Sodium copper chlorophyllin
Sodium copper chlorophyllinSodium copper chlorophyllin is a green colour made from chlorophyll, stabilised by swapping the magnesium at the centre of the molecule for copper. Plain chlorophyll goes a dull olive when heated or acidified; this does not.
Where it is and isn’t permitted
| Jurisdiction | Status | Scope and limits | Citation |
|---|---|---|---|
| United States | Permitted | 21 CFR 73.125retrieved 2026-09-07 | |
| Codex Alimentarius | Not listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited. |
What it is made from
Extracted from alfalfa, nettles or silkworm droppings, then treated to replace magnesium with copper. The silkworm route is used in parts of Asia, so the source is worth checking where it matters.
- Vegan status depends on the source
- Vegetarian status depends on the source
- May raise a halal question
- May raise a kosher question
This is not an omission. What this additive is made from is not fixed — depending on the manufacturer it may be plant, animal or microbial in origin, nobody is required to say which, and the same product can change source between production runs. Ask the manufacturer if it matters to you; a label cannot answer it.
Every name it appears under
1 recorded name. A label may use any of them.
As it appears in regulation
- Sodium copper chlorophyllin
Hazard reference values
No reference value for this substance in the sources we hold.
Evidence and how bodies read it
Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.
Sources for this page
- ecfr retrieved 2026-09-07
Full licence terms and publisher details on Sources. How this page is built and updated: Method.
Machine-readable:/api/v1/additives/sodium-copper-chlorophyllin.json